The Dir, or Theyr bin Abdalla as mentioned in the book "Futuh ul-Habasha", is a Somali clan. Its members mostly live in northwestern, central and southern of Somalia and Djibouti, in addition to the Somali Region of Ethiopia and the North Eastern Province in Kenya.
The main sub-clans of the Dir are the Issa of Djibouti and Ethiopia, as well as the Gadabuursi, Akisho, Biamal, Surre and Gurgura. Although often recognized as a Dir sub-clan, the Isaaq clan claims paternal descent from one Shaykh Ishaq ibn Ahmad al-Hashimi.